Employee Stock Ownership Plan Employee Stock Ownership Plan (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Employee Stock Ownership Plan [Abstract]
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares	406,371		321,449
Employee Stock Ownership Plan (ESOP), Number of Committed-to-be-Released Shares	8,893
Employee Stock Ownership Plan (ESOP), Number of Suspense Shares	172,929	181,822
Employee Stock Ownership Plan (ESOP), Shares in ESOP	588,193		321,449
Employee Stock Ownership Plan (ESOP), Deferred Shares, Fair Value	$ 2,675